本文通過對(duì)印制電路板(PCB)近場(chǎng)輻射模型的描述和建立，簡要介紹PCB 近場(chǎng)磁場(chǎng)輻射的
自動(dòng)測(cè)試和基于射頻磁場(chǎng)分布映像的PCB 故障診斷技術(shù)。作為一種無接觸式測(cè)試診斷技術(shù)，它對(duì)電路板具有無損性，測(cè)試更為安全可靠,且成本費(fèi)用低，診斷能力強(qiáng)，有著廣泛的發(fā)展前途。
[關(guān)鍵字] 磁場(chǎng)輻射 自動(dòng)測(cè)試 故障診斷
[Abstract] With the description and establishment of radiated magnetic-field model close to
printed circuit board (PCB), this paper presents an automatic test system on magnetic-field
radiation close to PCB. A fault diagnostic technology based on radiated magnetic-field image
is also presented. As a “touch unnecessarily” test method, it does little damage to circuit
board, and makes PCB testing more safe and low-cost. It will be used widely in future for
its powerful capability of diagnose.
[Keywords] magnetic-field radiation, automatic test, fault diagnostic